Mục tiêu: Đánh giá mối liên quan giữa mức độ đứt gãy DNA (DFI- fragmention index) của tinh trùng với hình thái bình thường và dị dạng 90 cặp vợ chồng vô sinh. Đối tượng phương pháp nghiên cứu: Nghiên cứu thuần tập tương lai sinh đang điều trị tại Trung tâm Hỗ trợ Sinh sản- Bệnh viện Đại học Y Hà Nội từ tháng 8/2020-tháng 12/2021. Người có tươi xuất được xét nghiệm dịch đồ theo tiêu chuẩn WHO 20...

Estimating the fractional coverage of photosynthetic vegetation (fPV) and non-photosynthetic (fNPV) is essential for assessing growth conditions in arid areas monitoring environmental changes desertification. The aim this study was to estimate fPV, fNPV bare soil (fBS) lower reaches Tarim River quantitatively. acquired field data during September 2020 obtaining fBS. Firstly, six indices (PVIs) ...

ObjectiveTo evaluate Deoxyribonucleic acid (DNA) methylation patterns in sperm from men with differential levels of DNA fragmentation index (DFI).DesignProspective study.SettingUniversity-affiliated reproductive medicine center.Patient(s)A total 278 male patients consulting for couple infertility were recruited the First Affiliated Hospital Wenzhou Medical University.Intervention(s)None.Main Ou...

The present study addresses the effect of heat stress on males' reproduction ability. For that, we have evaluated the sperm DNA fragmentation (DFI) by SCSA of ejaculates incubated at 37 °C during 0, 24 and 48 hours after its collection, as a way to mimic the temperature circumstances to which spermatozoa will be subject to in the ewe uterus. The effects of temperature and temperature-humidity i...

BACKGROUND Sperm DNA is protected against fragmentation by a high degree of chromatin packaging. It has been demonstrated that proper chromatin packaging is important for boar fertility outcome. However, little is known about the molecular mechanisms underlying differences in sperm DNA fragmentation. Knowledge of sequence variation influencing this sperm parameter could be beneficial in selecti...

Hypogonadotropic hypogonadism (HH) is an uncommon cause of male infertility and a congenital or secondary disorder characterized by delayed or absent sexual maturation. Congenital abnormalities leading to HH are usually the consequence of deficient GnRH secretion occurring either in isolation (idiopathic hypogonadotropic hypogonadism (IHH)), or in association with anosmia (Kallmann syndrome; KS...

OBJECTIVE To evaluate whether increasing antioxidant intake in men with high levels of DNA damage or lipid peroxidation improves gestational results in couples with history of recurrent embryo loss. DESIGN Descriptive study (case series). SETTING Early recurrent embryo loss program at the University of Antioquia, Medellín, Colombia. PATIENT(S) Seventeen men whose spouses had a history of ...

BACKGROUND Renal cell carcinoma accounts for 90% of renal neoplasms and metastatic disease is common. One third of newly diagnosed cases will have synchronous metastases at diagnosis and further 25-50 % will develop metachronous disease. CASE PRESENTATION This study presents two new cases of gallbladder metastasis from renal cell carcinoma (RCC) from our institution and reviews the published ...

IRRA (IR-Ra) group participated in the 2012 Web track, with a system implementing a non-parametric term weighting method based on measuring the divergence from independence (DFI). This is the third year of participation for IRRA group, following the participations in TREC 2009 and 2010 Web tracks. In this year, the aim is to evaluate a new DFI-based term weighting model developed on the basis o...

OBJECTIVE Several publications have established a relationship between sperm DNA damage and male factor infertility, based on data from America, Europe, and Asia. This study aimed to compare the extent of sperm DNA damage in sperm samples from Nigerian men with unexplained infertility and in sperm samples from a fertile group composed of sperm donors who had successfully impregnated a female pa...